JP2001338516A - Luminaire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminaire which is free from distortion of an irradiation pattern due to slanting of a reflector even if the weight is heavy, and capable of facilitating a replacing operation of a lamp. SOLUTION: The luminaire is provided with a substantially point-like light source 3 mounted on a plug receptacle 2 arranged in a device body 1, a reflector 4 attached to the device body 1 so as to cover the surroundings of the light source 3, and a translucent front protector 5 attached to a floodlight opening on a front surface of the reflector 4. The front protector 5, the rim of which is joined with the rim of the floodlight opening, is attached removably from the front surface of the reflector 4 through a frame-shaped mounting member 6.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in lighting equipment.

[0002]

2. Description of the Related Art Conventionally, in order to protect a light source lamp,
Some have a front protector called a protector on the front. The purpose is to cut off ultraviolet rays from the lamp, to protect the lamp from breakage, and to protect a high-temperature portion. Among them, there is a lamp provided with a front protective body in a reflecting mirror covering around a light source. This lamp must be replaced together with the reflector and the front protection when the lamp burns out, which is not a resource saving.

Recently, some lighting fixtures have a reflector with a front protective body mounted as a separate component from a lamp. In this case, when the lamp burns out, it is only necessary to remove the reflector with the front protective body and replace only the lamp. This lighting fixture is mainly used in spotlights,
The reflecting mirror with the front protective body is provided with a detachable mechanism on the rear surface side of the reflecting mirror, which is invisible from the external appearance inside the main body of the lighting fixture in consideration of the design surface, and is held.

FIG. 5 is a schematic structural view of a conventional luminaire, in which a substantially point-like light source 102 mounted on a socket 101 provided on a main body 100, a reflecting mirror 103 surrounding the light source 102, and a main body 100, a substantially point-like light source 102 mounted on a socket 101, a reflecting mirror 103 mounted on the main body 100 so as to cover the periphery of the light source 102, and a translucent light mounted on a light projecting opening on the front surface of the reflecting mirror 103. And a front protection body 105.

The reflecting mirror 103 has a mounting spring 106 provided on the main body 100 and a rear neck 1 of the reflecting mirror 103.
04. Mounting spring 106
As shown in FIG. 6 (a is a plan view, b is a side view), it is formed to have an engaging portion 107 and a support portion 108. Neck 10
4. Therefore, in the lighting fixture having this configuration, if the reflecting mirror is lightweight, it can be securely held.

[0006]

By the way, in the case where high illuminance is required, the above-mentioned luminaire has a reflecting mirror 103.
Needs to be large. However, in the above-described conventional technique, when the weight of the reflector 103 is increased due to its size, there is a limit in holding the reflector at the rear part thereof.

That is, in the structure where the reflector 103 is held at the rear portion, when the weight of the reflector 103 increases,
There has been a problem that the tilt of the optical axis 03 causes a shift in the optical axis, thereby reducing the illuminance and distorting the irradiation pattern. The reflecting mirror 10
Since the rear mirror 104 holds the reflecting mirror 103, when the weight of the reflecting mirror 103 increases, a large holding force is required by the mounting spring 106 to support the reflecting mirror 103, and the attaching / detaching operation becomes difficult. However, there is a problem that lamp replacement is difficult, and even when the weight of a reflector with a front protector increases, there is a demand in the market to commercialize a lighting device that does not have a tilt of the reflector and allows easy lamp replacement operation. I have.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a lighting device that can easily perform a lamp changing operation without a distortion of an irradiation pattern due to tilting of a reflecting mirror even if the weight is large. It is to provide a device.

[0009]

In order to achieve the above object, a lighting apparatus according to the present invention comprises a substantially point-like light source mounted on a socket provided on a main body, and a light source which covers the periphery of the light source. And a translucent front protector attached to the light-emitting opening in front of the reflector, in which the peripheral edge of the front-face protector is joined to the peripheral edge of the light-emitting opening. In this case, the reflector is mounted so as to be detachable from the front surface of the reflector via a frame-shaped mounting member.

[0010] In this configuration, through the frame-shaped mounting member,
The front protection body attached to the periphery of the light-emitting opening of the reflector with the periphery joined can be detached from the front surface of the reflector.

It is preferable that a flange is provided on the periphery of the light-emitting opening, and that the flange and the front protective body are inserted and mounted in an inwardly-opening groove provided in the mounting member. In this case, the front protective body is inserted into the groove of the mounting member, which is opened inwardly, and the periphery thereof is mounted together with the flange on the peripheral edge of the reflecting mirror.

Preferably, the mounting member is formed of an elastic material, and an operation piece for displacing a groove in the vicinity of the front protection body is provided so as to project forward so that the front protection body can be attached and detached. In this case, the front protection body can be attached and detached by operating the operation piece protruding forward from the attachment member formed of the elastic material, and elastically displacing the groove near the operation piece.

It is preferable that the front protective body is provided with an engaging portion projecting rearward at a peripheral edge thereof, and the engaging portion is engaged with the groove so as to hold the mounting member so as not to be detached. In this case, the mounting member is held in the groove so as not to be disengaged by engaging the engaging portion formed so as to protrude rearward from the peripheral edge of the front protective body.

Further, it is preferable that the reflecting mirror and the front protective body are formed of a glass material. In this case, the front protective body made of a glass material is attached by being inserted into a groove portion of the mounting member that opens inwardly into the frame, together with the flange portion around the reflecting mirror made of the glass material.

[0015]

1 to 4 show an embodiment corresponding to all of claims 1 to 5 of the present invention, and FIG.
FIG. 2 is a partial cross-sectional side view showing a schematic configuration of a lighting fixture according to an embodiment of the present invention. FIG. 2 shows a mounting state of a front protective body of the lighting fixture. ) Is a bottom view,
FIG. 3 is an explanatory diagram of a mounting member of the lighting fixture, and FIG. 4 is an explanatory diagram relating to attachment / detachment of a front protective body by the mounting member of the lighting fixture.

The lighting apparatus according to this embodiment includes a substantially point-like light source 3 mounted on a socket 2 provided in a main body 1 and a light source 3.
A reflecting mirror 4 attached to the main body 1 so as to cover around
A light-transmitting front protector attached to a light-projecting opening on the front surface of the reflecting mirror;
Is mounted so that it can be detached from the front surface of the reflecting mirror 4 via a frame-shaped mounting member 6 with its peripheral edge joined to the peripheral edge of the light emitting opening. Note that the main body 1 is a lamp main body. In this case, the main body 1 is rotatable around the optical axis together with a support member 8 provided on the fixture main body 7, and is fixed to the support member 8 by a screw 9 orthogonal to the optical axis. To be rotatable.

In this case, the light source 3 is formed of a discharge lamp such as a mercury lamp and has a substantially point-like shape. The light source 3 is electrically and mechanically joined and mounted to the dedicated socket 2 fixed to the main body 1. Have been.

In this case, the reflecting mirror 4 is formed of a glass reflecting mirror with a multilayer film, having a flange 41 on the periphery of the light projecting opening. As shown in FIG. 1, a step portion serving as an engaging portion is provided at the rear portion to form a neck portion 42, and the mounting spring 10 screwed to the main body 1 as described in the related art. In this case, the attachment spring 10 is attached more firmly by using a spring material such as stainless steel having a greater plate thickness than the conventional one. The flange portion 41 is for attaching the front protective body 5 via an attaching member 6 described later, and has a substantially flat front surface in order to closely contact and join the rear surface of the front protective body 5.

The front protective body 5 is a front glass provided on the reflecting mirror 4, and is provided via a mounting member 6, which will be described later.
Is attached to the flange portion 41. The front protective body 5 is provided with an engaging portion 51 protruding rearward by a predetermined dimension on a peripheral edge thereof, and the engaging portion 51 is engaged with the mounting member 6 and is temporarily held. .

The mounting member 6 is for attaching the front protective body 5 to the reflecting mirror 4 so as to be detachable. In this case, the flange 41 of the reflecting mirror 4 and the front protective body 5 are joined together. It has a groove 61 that opens to the front, and is formed in a frame shape from an elastic material such as a stainless steel material. The groove 61 is shown in FIG.
As shown in the figure, the front protective body 5 has substantially the same width dimension as the engaging portion 51, and is engaged with the engaging portion 51.
The mounting member 6 is securely held so as not to be detached from the front protective body 5 even when is detached from the reflecting mirror 4.

As shown in FIG. 2, an operation piece 62 for displacing a groove 61 in the vicinity of the mounting member 6 so that the front protection body 5 can be attached and detached from the front side is directed forward as shown in FIG. It protrudes from two places around it. Although the mounting member 6 is formed of a stainless material, it is not deformed by the heat of the light source, but may be formed of an elastic heat-resistant synthetic resin material or the like other than the stainless material.

In the luminaire having the above structure, the reflecting mirror 4 is attached more firmly by inserting the rear neck portion 42 into the inside of the mounting spring 10 from the front side and engaging the same. Therefore, even when the weight of the reflecting mirror 4 is increased, it is greatly reduced that the reflecting mirror 4 tilts and shifts the optical axis, thereby lowering the illuminance and distorting the irradiation pattern. In this lighting apparatus, the front protective body 5 is attached to the peripheral edge of the light-emitting opening of the reflecting mirror 4 by attaching the front protective body 5 via the mounting member 6. Mirror 4 through
It is attached to the front so that it can be attached and detached.
The light source 3 can be easily detached from the lamp and the lamp replacement operation of the light source 3 can be performed.

More specifically, as shown in FIG.
, The front protective body 5 is attached to the reflecting mirror 4 via the mounting member 6.
Mounted on the front. At this time, the front protective body 5
Along with the flange 41 on the peripheral edge of the reflecting mirror 4, it is inserted into the groove 61 opened toward the inside of the frame of the mounting member 6, and closely attached to the mounting member 6. Then, the front protection body 5 is
When detaching from the reflecting mirror 4, the operation piece 62 of the mounting member 6 is displaced inward as shown in FIG.
The groove 61 near the operation piece 62 is elastically displaced, and the mounting member 6
Is detached from the rear surface of the flange portion 41, and is removed in a state in which the engaging portion 51 of the peripheral edge of the front protection body 5 is held in the groove 61 of the mounting member 6 as shown in FIG.

In this case, the reflecting mirror 4 and the front protective body 5 made of a glass member whose thermal expansion is smaller than that of the synthetic resin material are provided at the junction where the temperature is high. Therefore, the generation of abnormal noise due to a dimensional change due to a temperature change of lighting and extinguishing can be reduced as compared with a case where one or both of the reflecting mirror 4 and the front protective body 5 are made of a synthetic resin material.

Therefore, according to the lighting device described above, the front protective body 5 is attached to the peripheral edge of the light-emitting opening of the reflecting mirror 4 by joining the peripheral edge through the frame-shaped mounting member 6.
Can be detached from the front surface of the reflecting mirror 4, so that the heavy reflecting mirror 4 can be firmly attached to the main body 1.
Accordingly, the irradiation pattern is not distorted due to the inclination, and the lamp replacement operation can be easily performed.

The front protector 5 and the flange 41 on the peripheral edge of the reflector 4 are inserted into the groove 61 opened toward the inside of the frame of the mounting member 6 and the periphery thereof is mounted. The protection body 5 can be attached. In addition, the front protection body 5 can be attached and detached by operating the operation piece 62 projecting forward from the attachment member 6 formed of an elastic material to elastically displace the groove 61 near the operation piece 62. It can be easily attached and detached, and workability at the time of repairing the light source 3 is good.

Further, the mounting member 6 is held in the groove 61 so as not to be disengaged by being engaged with the engaging portion 51 formed so as to protrude rearward from the peripheral edge of the front protection body 5, so that the light source 3 is repaired. There is no need to attach the mounting member 6 to the front protection body 5 at the time, and the workability at the time of repairing the light source 3 can be further improved. Also, the front protective body 5 made of a glass material is attached by being inserted together with the flange 41 around the reflecting mirror 4 made of the glass material into the groove 61 opened toward the inside of the frame of the mounting member 6, so that it is synthesized. A member having a smaller thermal expansion than that of the resin material is provided at the joint portion where the temperature becomes high, so that an effect of reducing abnormal noise due to a change in temperature at turning on and off can be obtained.

[0028]

The present invention is embodied as in the above-mentioned embodiment, and in the luminaire according to the first aspect, a heavy reflecting mirror can be firmly attached to the main body. The irradiation pattern is not distorted due to the inclination, and the lamp replacement operation can be easily performed.

Further, in the lighting apparatus according to the second aspect, the front protection body is inserted into the groove formed in the mounting member toward the inside of the frame together with the flange on the peripheral edge of the reflector, and the periphery thereof is mounted. Therefore, the front protection body can be mounted in a stable state.

Further, in the lighting device according to the third aspect, the front protection body is operated near the operation piece by operating the operation piece projecting forward from the mounting member formed of the elastic material. Since the groove portion can be elastically displaced and attached and detached, it can be easily attached and detached, and workability at the time of light source repair and the like is good.

Further, in the lighting apparatus according to the fourth aspect, the mounting member is prevented from being detached by being engaged with the engaging portion formed in the groove portion so as to protrude rearward on the peripheral edge of the front protection body. Since it is held, there is no need to attach the mounting member to the front protection body at the time of repairing the light source, and the workability at the time of repairing the light source can be further improved.

Further, in the lighting apparatus according to the fifth aspect, the front protective body made of a glass material is opened to the frame-shaped inner side of the mounting member together with the flange of the peripheral edge of the reflecting mirror made of the glass material. Since it is inserted and attached to the groove, a member having a smaller thermal expansion than the synthetic resin material is provided at the joint portion where the temperature becomes high, so that an effect of reducing abnormal noise due to temperature change of lighting and extinguishing is achieved.

[0033]

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view showing a schematic configuration of a lighting fixture according to an embodiment of the present invention.

FIG. 2 shows an attached state of a front protective body of the lighting fixture,
(A) is a partial cross-sectional side view, and (b) is a bottom view.

FIG. 3 is an explanatory diagram of a mounting member of the lighting fixture.

FIG. 4 is an explanatory diagram relating to attachment / detachment of a front protection body by a mounting member of the lighting fixture.

FIG. 5 is a schematic configuration diagram showing a lighting fixture as a conventional example of the present invention.

6A and 6B show a mounting spring of the lighting fixture, wherein FIG. 6A is a plan view and FIG. 6B is a side view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Socket 3 Light source 4 Reflecting mirror 41 Flange part 5 Front protective body 51 Engagement part 6 Mounting member 61 Groove part 62 Operation piece

Claims (5)

[Claims] 1. A substantially point-like light source mounted on a socket provided on a main body, a reflecting mirror mounted on the main body so as to cover a periphery of the light source, and a translucent light mounted on a light projecting opening on a front surface of the reflecting mirror. In a lighting device including a front protection body, the front protection body is attached to a periphery of the light-emitting opening so as to be detachable from a front surface of the reflector via a frame-shaped attachment member. Lighting equipment characterized by the above-mentioned. 2. The lighting fixture according to claim 1, wherein a flange is provided on a peripheral edge of the light-emitting opening, and the flange and the front protective body are inserted and mounted in an inwardly-opening groove provided in the mounting member. . 3. The luminaire according to claim 2, wherein the mounting member is formed of an elastic material, and an operation piece for displacing a groove in the vicinity of the front protection body so as to be detachable is protruded forward. 4. The front protection body according to claim 2, wherein an engagement portion projecting rearward is provided on a peripheral edge of the front protection body, and the engagement member is engaged with the groove to hold the attachment member so as not to be detached. lighting equipment. 5. The lighting device according to claim 2, wherein the reflecting mirror and the front protective body are formed of a glass material.